“I used to like chicken more than beef, but that was hen and this is cow”

“That was hen, this is cow”—an animal pun on “that was then, this is now”—is a jocular one-liner that has been printed on several images. “That Was Then, This Is Cow” was a title of an episode of the French cartoon television series The Why Why Family in 1996.
   
“I used to like chicken more than beef, but that was hen and this is cow” was posted on Reddit—Oneliners on November 25, 2017.
 
         
Wikipedia: The Why Why Family
The Why Why Family (French: Les Kikekoi and also known as Saban’s The Why Why Family) is a French cartoon television series for children, which originally aired in 1996, written by Annabelle Perrichon and François-Emmanuel Porché and produced by Saban Entertainment and CinéGroupe. Later, in 1998, the show was broadcast in the United States by Fox. Character designs and comedy elements emulate vintage cartoons.
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Episode 21
Cows Vanilla, Kwik & Kwak That Was Then, This Is Cow
         
Twitter
Ravi Shankar‏
@empurpler
#YABooksWithALetterMissing “That was Hen, This is Cow,” S.E. Hinton’s classic coming-of-age tale of 2 teen farm animals coping with ennui
3:52 PM - 2 Jul 2013
 
Twitter
Zippy the WonderSlug‏
@19Bob61
I thought you were raising chickens?
M: That was hen, this is cow.
So, so sorry.
3:35 AM - 22 Dec 2014
 
Twitter
Jakob Prichard‏
@jakob_prichard
#Shmsfoodify
That was hen this is cow
(That was then this now)
5:42 PM - 1 Nov 2016
 
Reddit—Oneliners
I used to like chicken more than beef, but that was hen and this is cow.
submitted November 25, 2017 by zubbs99
 
Twitter
LOL Tweets™‏
@lolmgco
I used to like chicken more than beef, but that was hen and this is cow.
5:35 PM - 25 Nov 2017
 
Twitter
JokeFarm‏
@_JokeFarm
I used to like chicken more than beef, but that was hen and this is cow. #joke #jokes
5:43 PM - 25 Nov 2017